Hi Goto,
Sorry I don't have Visio on this computer so excuse the ugly drawing below.
This is what a typical RS485 schematic would look like. The DE/RE pins generally have internal resistors that disable them when powered up. For RS422, you would…
Part Number: THVD1420 Hello Experts, My customer would like to understand about hot plug-in feature. The datasheet mentioned "Glitch-free power-up/down for hot plug-in capability" in p1. Does it mean this device can be insertion/extraction of RS-485 cable…
Part Number: THVD1420 Hello,
We purchased the parts of THVD1420DRLR from TI Store, and we found that there is vinyl on the pin, pls help suggest the reason for that.
And pls suggest whether that affacts usage.
Thanks,
Gloria
Part Number: THVD1420 According to the following Q&A, it seems there's no problem to implement redundant failsafe resistors.
https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1228617/thvd1420-fail-safe/4640161#4640161
But in…
Part Number: THVD1420 Hi,
I know THVD1420 has built in failsafe function. Is it okay if the customer connects redundant external fail-safe resistors? The following resistors are connected to the bus terminals of the existing circuit. A: Pull-up 4.7k B: Pull…
Part Number: THVD1420 Hi,
Can THVD1420 be reworked after reflow soldering? Also, if it is an IC that can be reworked, could you tell me the conditions (soldering temperature, time)?
Thanks,
Astro
Part Number: THVD1420 Hi expert,
I recommend my customer to use THVD1420 to replace ADM3485EARZ. However, the output current of THVD1420 is much smaller than ADM3485EARZ. Could you please comment:
1. Is there any risk if using THVD1420 to directly replace…
Part Number: THVD1420 Hello, in the data sheet :SLLSEY3E –MAY 2018–REVISED MAY 2019
you find an application to protect the THVD1420 against surge:
R1 is a CRCW0603010RJNEAHP with maximum power loss of 1/3W. The short circuit output current…
Part Number: THVD1420 Other Parts Discussed in Thread: TMS320F28388D Hi there,
I'm dave, beginner hardware engineer.
first of all, I designed rs485 schematic as below.
but when I want to communicate with other device (which i dont know schematic…